ULTRA HIGH IMPEDANCE SENSOR WITH APPLICATIONS IN NEUROSENSING

A sensor circuit usable with capacitive sensors in an electrical potential sensing network is provided. The sensor circuit provides bias current while maintaining a high input impedance for signals in a frequency band of interest by positive feedback of a filtered measurement through a finite impeda...

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Bibliographische Detailangaben
1. Verfasser:	MACCALLUM, Kenneth
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY DIAGNOSIS ELECTRICITY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEDICAL OR VETERINARY SCIENCE PHYSICS SURGERY TESTING
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Beschreibung
Zusammenfassung:	A sensor circuit usable with capacitive sensors in an electrical potential sensing network is provided. The sensor circuit provides bias current while maintaining a high input impedance for signals in a frequency band of interest by positive feedback of a filtered measurement through a finite impedance. The sensor circuits are suited for technologies such as, but not limited to electroencephalography (EEG), electromyography (EMG) and electrocardiograms (ECG). A neurofeedback system utilizing the capacitive conduction sensor is also described.